Home / 131,567.80-197,353.50-42,821.68

Finding the Fourth Proportional to 131,567.80, 197,353.50 and 42,821.68

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Solution

The fourth proportional to 131,567.80, 197,353.50 and 42,821.68 is: 64,233.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,567.80 : 197,353.50 = 42,821.68 : x
  2. Step 2: Convert to fraction form
    131,567.80/197,353.50 = 42,821.68/x
  3. Step 3: Cross multiply
    131,567.80x = 197,353.50 × 42,821.68
  4. Step 4: Simplify right side
    131,567.80x = 8,451,008,423.88
  5. Step 5: Solve for x
    x = 8,451,008,423.88/131,567.80
  6. Step 6: Final answer
    x = 64,233.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.